BA3472FJ-GE2

Overview

The BA3472FJ-GE2 is a high-speed ground-sense operational amplifier manufactured by ROHM Semiconductor. It features two channels in an SOP-J8 package. Key electrical parameters include a gain-bandwidth product of 4 MHz, a slew rate of 10 V/µs, and a typical circuit current of 2 mA per channel. The device operates on a single supply voltage ranging from 3 V to 36 V or dual supplies from ±1.5 V to ±18 V. It supports an input voltage range from VEE to VCC-2.0 V and provides an output swing from VEE+0.3 V to VCC-1.0 V. Additional specifications include a maximum input offset voltage of 10 mV, typical CMRR and PSRR of 97 dB, and an operating temperature range of -40°C to 85°C.

Feature Summary

• High-speed operation with a 10 V/µs slew rate and 4 MHz gain-bandwidth product
• Ground-sense capability allowing input voltage detection down to the negative supply rail
• Wide operating supply voltage range supporting both single and dual power configurations
• Built-in phase compensation capacitor for stable performance without external components

Applications

• Industrial control systems requiring fast signal processing
• Sensor interface circuits utilizing ground-referenced inputs
• Automotive electronics compatible with wide voltage fluctuations
• General-purpose analog signal conditioning where high speed is required

Procurement Notes

Verify the component status before integration into new designs. Official documentation classifies this part as Not Recommended for New Designs (NRND). It is currently produced solely to support existing customers. Engineers should confirm availability through authorized distributors and assess long-term supply continuity risks associated with end-of-life products prior to finalizing procurement plans.

Selection Notes

Select this component when high-speed ground-sense amplification is required within a wide voltage window. The 4 MHz bandwidth and 10 V/µs slew rate distinguish it from standard low-speed op-amps. Ensure the application does not require shutdown functionality, as this model lacks that feature. Consider the NRND status carefully if designing for long-term production cycles, as alternative newer generations may be available from the manufacturer.

Part Context

This device belongs to the BA3472 series of high-speed operational amplifiers designed by ROHM Semiconductor. The series emphasizes ground-sense input capabilities and broad supply voltage tolerance. The BA3472FJ variant specifically utilizes the SOP-J8 surface-mount package. It shares core electrical characteristics with other members of the family, such as the BA3472WFV and BA3472YF-C, differing primarily in packaging and specific automotive qualification grades.

Replacement Considerations

Publicly confirmed substitute part numbers are not explicitly listed in the provided source material. Designers should consult official ROHM documentation for direct pin-compatible alternatives or evaluate the BA3472WFV-CE2 and BA3472YF-CGE2 for similar electrical performance with different packaging or automotive qualifications.